| Acronym | Meaning |
| EHAP | Extremely Hazardous Air Pollutant |
| STEL | Short Term Exposure Limit |
| QCI | Quadratic Configuration Interaction |
| OCTA | Oxidizing Capacity Of The Tropospheric Atmosphere |
| PFGE | Pulsed-field Gel Electrophoresis |
| PLY | Photoluminescence Yield |
| AMI | Acute Myocardial Infarction |
| HAMR | Heat Assisted Magnetic Recording |
| EROS | Elaboration Of Reactions For Organic Synthesis |
| ARRP | Acid Rain Research Program |